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Share Capital (Tables)
 12 Months Ended
Dec. 31, 2018
Text block [abstract]  
Schedule of Share Capital
            in millions of Euros  
     Number of shares      Share capital      Share premium  

At January 1, 2018

      134,510,623        3        420  

New shares issued(A)

      1,488,771        —          —    
  

 

 

     

 

 

     

 

 

  

At December 31, 2018(B)

      135,999,394        3        420  
  

 

 

     

 

 

     

 

 

  

 

(A)

Constellium N.V. issued and granted 1,488,771 Class A ordinary shares to certain employees related to share-based compensation plans.
(B)

Constellium N.V. holds 38,597 Class A ordinary shares at December 31, 2018.